My motivation for this plugin is developing WebXR apps, where you do need to export in order to test, and I'm constantly forgetting to export. :-) It's pretty annoying because I'll put on the VR headset, reload the page in the browser, then wonder why my changes aren't there only to realize I forgot to export again! So, I gotta take the headset off, export the project, then start all over again.
I don't know if there's another use-case for this... Maybe if you're doing repeated tests on the release build and you're sick of the ~5 clicks it takes to export every time?
Anyway, I know I'm going to use it!